Binding-post.



PATBNTED FEB. 20, 19016.

B.G.HENN.

I BINDING POST. APPLICATION FILED MAY 9, 1905.

% 777emra.r I fly a 37 naxaz' UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Feb. 20. 1906.

Application filed May 9,- 1905. Serial No. 259,595-

To all whom it may concern:

Be it known that I, EDWIN C. HENN, a citizen oft-he United. States, residing in Cleve' land, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Binding Posts, of which the following is a specification.

.Fig. 5, the nut being shown in section.

This invention has reference to the means for attaching electrical conductors, such as copper wires, to one of the elements of an electric battery-cell.

One of the objects of the invention is to provide a form of bindin -post that can be secured to the battery element by merely making a suitable aperture'in the element and thereupon forcing the engaging portion of the bindingpost into the aperture by a straight movement without the necessity of screwing it in.

Figure 1 represents a battery-cell, partlyin elevation and partly in section, having a binding-post secured thereto. Fig. 2 is an end view of the battery element before the post is secured thereto. Fig. 3 is a side elevation of the element and binding-post in position thereon. Fig. 4 shows the bindin post of the battery element secured to a si e face instead of the end. Fi .5 is aview'similar to Fig. 4, showing a s ightlymodified form of binding-post. Fig. 6 is a side elevation of the binding-post separate showrlirin 1 7 is an'elevation of the binding-post from tli 'e inserting end. Fig. 8 is a side elevation of the form of binding-post shown in Fig. 1. Fig; 9 is an end elevation of the binding-post shown in Fig; 8, and Fig. 10 shows another modification. I

The cell 12 is shown as having a positive pole element 13, that is usually made of car-' bon of substantially cylindrical shape,. but

having corrugated surfaces; but this carbon rod may be of rectangular or oblong crossscope of my invention. The rod is shown as not extending beyond the cell, but fiush with the end, but may project beyond, if preferred.

The bindingost (denoted generally by 14) is designed to e inserted in a suitable bore in-theupper end of the rod 13, and this bore may be vertical, as shown in Fig. 1that is, in the end of the rodor the bore may be arranged horizontally, as set forth in Figs. 4 and 5. The bindingpost in the present instance c'omprises a shank 15, that has at an intermediate part an. annular flange or collar 16. Between this flange and one end of the shank, that is preferably of cylindrical contour, are formed a lurality of projections or ribs 19, that exten longitudinally and which are preferably disposed adjacent. These ribs are preferably made angular or V- sha ed.

At the other end portion ofthe shank Tom the collar 16 may be arranged any suitable or desired form of conductor-attaching means. In the present instance the shank at this end, of the post is screw-threaded to engage a suitable milled nut 17. The conductor to be attached to this element can be tightly .clamped between the nut and the flange 16 in the usual and well-known manner.

The battery element 13 has a bore 18 formed in it of a cylindrical form, whose diameter'is slightly less than that of the binding-post at its ribbed portion 19, whereby upon the bindin -post being forced into said bore until the co lar 16 engages the end of the carbon rod the ribs willengage the wall of the bore and slightly, furrow the wall, thereby not only securing the binding-post to the element, but effectually resistin the twisting of the .bindin post in the here by the screwing action of t e nut 17 to clamp the conductor in position. To facilitate the insertion of the binding-post in the bore18, the endportion 20 may be slightly reduced, so as to easily en-- ter the'bore and act as a guide to insure the proper entrance of the ribbed portion 19, or the post may have the ribs extending from the flange 16' to the extremity and have the end portion tapered slightly, as shown at 22 in Fig. 10. In the modification shown in Figs. 5 and 6 the ribs do not extend from the collar downward, but a cylindrical portion 21 is left between the collar and the ribs that is of a diameter'to snugly engage the bore in the carbon rod.

From the above it will be observed that the section or anv preferred form within the l binding-post is formed of but one member in IIO addition to the screw-nut that clamps the conductor-wire and that no separate means whatever are needed to secure the bindingpost to the carbon element. Another advantage of this form of post is that but a simple cy indrical bore is required to be made in the carbon element, and the binding-post is secured to the element by merely forcing it straight into the socket without any screwing or twisting motion or without the use of any means, such as a lock-nut or the ap lication of solder, to securely and effectual y retain the binding-post in proper position on the end of the battery element.

This binding- 0st is of great utility wherever it is desire to secure a conductor to a non-metallic body of rigid material, such ascarbon. It forms a very convenient method of connecting the wires to the carbon-brushes used on dynamos andmotors. I

Having thus described my invention, what I claim is 1. An element for an electric battery-cell consistin of a rod of non-metallic substance having a ore in its outer end portion, a binding post comprising conductor attachin means at one end, and having at its other en portion longitudinally-extending ribs, said ribbed portion of the binding-post being inserted in said bore in the rod, the bore being of a diameter less than that of the engaging portion of the binding-post, whereby the ribs will have a retaining engagement with the wall of the bore. r

2. An element for an electric battery-cell consistin of a rod of non-metallic substance having a ore in its outer end portion, a bindingpost having a shank provided with a col lar at an intermediate portion, the post being screw-threaded from said collar to one extremity of the post, a nut engaging said threaded portion, the binding-post at the the binding-post being inserted in said bore other side of said collar being rovided with adjacent longitudinal extend ng ribs, said latter ortion'of the binding-post being inserted into said bore with the collar engaging the rod adjacent the bore, the. said bore being of a diameter less than that of its'engagin ortion of the post, whereby said ribs wil have aretaining engagement with the walls of the bore. v I

3. An element for an electric battery c'ell consistin of a rod of non-metallic substance having a ore in its outer end portion, a binding-post having at one end portion longitudinally-extending ribs, said ribbed portion of in the rod, the bore being of a diameter less than that of the engagin portion of the hinding-post, whereby the ri s will have a retaining engagement with the wall of the bore.

4. g The combination of a rigid non-metallic body having a bore therein, a binding-post comprising conductor attaching means at one end and having at its other end portion. longitudinally extending ribs, said ribbed ortion of the post being inserted in said bore in the body, the bore being of less diameter than that of the enga ing portion of the post whereby the ribs wi have a retaining engagement with the wall of the bore.

5. The combination of a rigid non-metallic body having a bore therein, a binding-post having a shank provided with a collar, the post being screw-threadedfrom the collar to one extremity, and nut on said threaded portion, the post at the other side of the collar being provided with longitudinally-extending ribs, said ribbed portion of the 0st being inserted in said bore with the co lar engaging the body adjacent the bore, said bore being of a diameter less than that of the engaging portion of the post whereby the ribs will have a retaining engagement with the wall of the bore.

6. A binding-post provided with conductor-attaching means, at one end, and having a cylindrical shank at the other end portion provided with a circularv series of Ion itudinally-extending ribs, disposed paralle with the axis of the shank.

7. A binding-post provided with conductor-attachin means at one end, and having a cylindrical s ank at the other end portion provided with a circular series of longitudinally-extendingribs, disposed parallel with the axis of the shank, the end portion of the shank being made tapering/ 8. A binding-post comprising a shank having a flange at an'intermediate portion, the

post from said portion to one end beingscrew-threaded, a nut en aging such threadedportion, the shank of t e post at the other side of the flange being substantially cylindrical and adjacent r1b's extending substantially parallel with the axis of the shank.

Signed at Cleveland, Ohio, this 4th day of May, 1905. Y

EDWIN c. HENN.

Witnesses:

O. S. 'WERNTZ, V. C. ERNST.

provided with a circular series of 

